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Biskaborn, Boris K; Herzschuh, Ulrike; Bolshiyanov, Dimitry Yu; Schwamborn, Georg; Diekmann, Bernhard (2013): Physico-chemical parameters of sediment core PG1975-1 (09-Tik-05) from a Tundra Lake, Northeastern Siberia [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.833557, Supplement to: Biskaborn, BK et al. (2013): Thermokarst processes and depositional events in a Tundra Lake, Northeastern Siberia. Permafrost and Periglacial Processes, 24(3), 160-174, https://doi.org/10.1002/ppp.1769

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Abstract:
The relationships between thermokarst activity, limnogeological processes and climate change in the Siberian Arctic are not well understood. The objective of this paper is to identify the factors controlling the patterns of deposition, using grain size distribution, organic content, elemental composition and mineralogical composition of a 137-cm long sediment core with a maximum age of ~10.9 cal. kyr BP from Lake El'gene-Kyuele in the tundra of northeastern Siberia. Eight fine sand layers are attributed to depositional events associated with thaw slump activity acting upon orthogonally oriented patterns of ice-wedge networks in the ice-rich permafrost on the NW margin of the lake catchment. Sr/Rb ratios, which correspond to the total feldspar and illite content, serve as high-resolution grain size proxies. The Br content relates to the total organic carbon content, and the Fe/Mn ratio reflects the degree of oxidisation. Our results indicate a relationship between repeated phases of fine sand input and retrogressive thaw slumping dependent on hydroclimate variability and orthogonally oriented ice-wedge networks within the catchment.
Keyword(s):
SibLake
Project(s):
Permafrost Research (Periglacial Dynamics) @ AWI (AWI_PerDyn)
Coverage:
Latitude: 71.294350 * Longitude: 125.550480
Date/Time Start: 2009-08-04T00:00:00 * Date/Time End: 2009-08-04T00:00:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
6 datasets

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Datasets listed in this publication series

  1. Biskaborn, BK; Herzschuh, U; Bolshiyanov, DY et al. (2013): Age determination of sediment core PG1975-1 (09-Tik-05). https://doi.org/10.1594/PANGAEA.780385
  2. Biskaborn, BK; Herzschuh, U; Bolshiyanov, DY et al. (2013): Elemental composition of sediment core PG1975-1 (09-Tik-05). https://doi.org/10.1594/PANGAEA.780386
  3. Biskaborn, BK; Herzschuh, U; Bolshiyanov, DY et al. (2013): Mineral composition of sediment core PG1975-1 (09-Tik-05). https://doi.org/10.1594/PANGAEA.780387
  4. Biskaborn, BK; Herzschuh, U; Bolshiyanov, DY et al. (2013): Organic geochemistry of sediment core PG1975-1 (09-Tik-05). https://doi.org/10.1594/PANGAEA.780388
  5. Biskaborn, BK; Herzschuh, U; Bolshiyanov, DY et al. (2013): Sedimentology of core PG1975-1 (09-Tik-05). https://doi.org/10.1594/PANGAEA.780389
  6. Biskaborn, BK; Herzschuh, U; Bolshiyanov, DY et al. (2013): Hydrochemistry at site PG1975. https://doi.org/10.1594/PANGAEA.780384